Coffee grounds as fertilizer in the garden: be careful, lavender doesn't like it at all
Created: 06/07/2022, 08:00
By: Jasmin Pospiech
Coffee grounds are a valuable and inexpensive plant fertilizer.
It also helps against weeds.
But some herbs and flowers can even die.
Munich – Inexpensive, effective and sustainable: for some, coffee grounds are a waste product, but for garden owners they are worth their weight in gold.
Because coffee grounds contain a lot of good things for the plants in the local greenery.
It has nitrogen, phosphorus and potassium and is therefore a valuable fertilizer.
It also contains some tannic acids, antioxidants and traces of caffeine.
Ingredients that many flowers, shrubs and plants need in order to be able to grow vigorously and healthily.
Coffee grounds as fertilizer in the garden: be careful, lavender doesn't like it at all
Coffee grounds as plant fertilizer?
Yes, but please not for every plant.
(Iconic image) © Image Source/Imago
The coffee grounds make the soil pH slightly acidic, which benefits plants that prefer acidic humus soil.
These include popular garden plants such as:
hydrangeas
rhododendron
ferns
peonies
blueberries
tomatoes
Another advantage is that coffee grounds enrich the soil with nutrients and thereby also attract earthworms.
They have enough food and at the same time they loosen the soil.
With the result that the soil is better aerated.
In addition, coffee grounds keep pests such as snails or ants away from the roots.
It is also an effective home remedy for moss in the lawn.
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Coffee grounds as fertilizer in the garden: how to proceed
But for this to happen, gardeners should make sure that the coffee grounds are not wet.
Otherwise it will mold quickly.
You should therefore cool it down and let it dry before using it.
It is best to put it on a flat plate and place it in the sun.
You can then put the coffee grounds flat under the soil in the bed or in potted plants to distribute them evenly.
For indoor plants, on the other hand, it is sufficient if you first let the coffee grounds cool down and then dilute them 1:1 with water.
Finally, pour the liquid over the plants, preferably once a week.
Coffee grounds as fertilizer in the garden: Not everyone can tolerate it
But be careful: not every plant likes coffee grounds.
After all, not all plants tolerate acidic humus soil.
Some prefer a chalky, dry soil instead.
These include:
book
bluebells
crocuses
lavender
daffodils
cloves
tulips
Lavender in particular likes it low in nutrients and barren.
Therefore, it usually does not need to be fertilized.
If you want to plant lavender in a bucket, you should therefore mix the soil with sand.
Also make sure that the pot has a hole so that there is no waterlogging.
